挂

guà ㄍㄨㄚˋ

1. to hang to suspend (from a hook etc)
2. to hang up (the phone)
3. to be dead

   of a line

4. to be worried to be concerned
5. to make a phone call

   dialect

6. to register (at a hospital) to make an appointment (with a doctor)
7. to kill to die to be finished to fail (an exam)

   slang

8. classifier for sets or clusters of objects